chromosome

Discoveries made during NASA’s study on the Kelly twins found extended time in space also impacts telomeres, the protein structures at the ends of chromosomes that control cellular division.

"In fact, scientists used to believe that the Y chromosome lacked genetic variety, which we believed meant that it didn't contribute much to species diversity."

To fully understand this complex swath of the American electorate, there’s been no shortage of wide-lens examinations into the political leanings of the Y chromosome set.

Since then they have claimed that male XY chromosomes were found in both cases.

After defeat by Lin on Thursday, Turkey's Kahraman made an 'X' gesture to the crowd - said to be intended to represent female chromosomes - but both were smiling after their hug on the medal podium.